The page describes the new functionalities of Version 4.0.7 of the TFEL project.

This version was released on June 22, 2026 along with:

• Version 3.0.17,
• Version 3.1.17,
• Version 3.2.14,
• Version 3.3.9,
• Version 3.4.10

and inherits from all fixes from those releases.

1 Issues fixed

1.1 Issue 938: [mfront] Use of MakeQuantityReference only if use_qt is true

For more details, see https://github.com/thelfer/tfel/issues/938.

1.2 Issue 934: [tfel-math] fix assignement of quantities with incompatible unit types

For more details, see https://github.com/thelfer/tfel/issues/934.

1.3 Issue 933: [mfront] the use_qt parameter shall alter the types declared using quantity

For more details, see https://github.com/thelfer/tfel/issues/933.

1.4 Issue 907: [tfel-math] fix det for T2toT2 objects

For more details, see https://github.com/thelfer/tfel/issues/907.